One example could be a fanfic where an Evil OC tries to take over Equestria by spreading dark magic. They might start by corrupting some of the minor ponies and gradually work their way up to the main characters. Another could involve an Evil OC creating chaos during a big celebration in Ponyville, like the Grand Galloping Gala.
First, create a well - developed Evil OC. Give them motives for being evil, like a past betrayal or a thirst for power. Then, plan out how they will interact with the existing MLP characters. For example, if your OC is trying to steal magic from Twilight Sparkle, think about how Twilight would react. Also, make the story flow well. Don't just have random acts of evil, but build up to a big showdown or climax.
It's hard to say if 'mlp evil fluttershy fanfic' are extremely popular. In the vast My Little Pony fanfic community, there are all kinds of stories. Some people might be really drawn to the idea of an evil Fluttershy as it's a big change from the original character, so it could have a dedicated following. But compared to more traditional MLP fanfics that stick to the original personalities, it might not be as widespread.
Well, it could be about a lot of things. Maybe it's a fan - created story where the Mane 6 from My Little Pony turn evil. It could involve them causing chaos in Equestria, perhaps by using their powers for bad instead of good. For example, Twilight Sparkle could use her magic to control others rather than to help and protect.
An 'mlp evil fluttershy fanfic' is likely a fan - created story within the My Little Pony (mlp) fandom that features Fluttershy in an 'evil' role. This could involve her acting out of character, perhaps being mean, causing trouble, or having some sort of dark motives. It's a creative exploration by fans who want to see a different side of the usually gentle Fluttershy.
In a 'mlp evil twilight fanfic', the story may begin with Twilight experiencing some sort of trauma or encounter that starts to twist her personality. This could be something like being betrayed by a friend or discovering a dark secret about Equestria. As she turns evil, she might use her intelligence and magic in devious ways. Her magic, which was once used for good, could now be used to create chaos. For example, she could start manipulating the elements of harmony or causing rifts between the different pony tribes. And her friends would then have to figure out how to stop her and bring back the old Twilight.
In a 'evil spike mlp fanfic', it might be that Spike has been influenced by some external dark force. This could lead to him betraying his friends and working against the values of friendship that are so central to My Little Pony. The fanfic could delve into his motives, like if he feels unappreciated or overlooked, and then show how his evil deeds play out and whether there's any chance for redemption in the end.
One challenge is merging the two very different tones. MLP has a light - hearted, family - friendly tone while Resident Evil is dark and full of horror. Balancing these so that neither aspect overshadows the other can be difficult. Another challenge is character integration. How do you make the ponies from MLP interact believably with the human (or non - pony) characters from Resident Evil? And then there's the world - building. Combining the magical world of Equestria with the post - apocalyptic or virus - ridden worlds of Resident Evil needs to be done carefully to make it seem cohesive.
They can be combined by creating a unique setting. Picture a world where the Equestria from MLP has a hidden, dark corner that has been affected by Resident Evil - like elements. Maybe some mad scientist pony, inspired by Resident Evil's Umbrella Corporation, creates a dangerous substance. The story could then follow the adventures of the MLP characters as they try to stop the spread of this new threat. Or, you could have Resident Evil characters enter Equestria and be shocked by the colorful and seemingly innocent world, but soon realize that the threat they face is just as real here as in their own world.
There may be some popular 'evil spike mlp fanfic' stories, but it really depends on the different fan communities. Some might be popular within a specific group of fans who are really into exploring darker themes in the MLP world. However, without extensive research in the various MLP fanfic platforms, it's difficult to name any in particular. Usually, if a story has a really engaging way of portraying Spike's transformation into an evil character and how it affects the rest of the ponies, it has a better chance of being popular.